2019

7.7

2020

7.4

2006

6.6

1989

6.0

1984

9.2

2006

5.0

2014

6.7

1992

7.1

2020

7.2

2021

5.3

2015

6.1

2010

7.3

2010

9.1

1955

6.2

2015

7.0

1994

7.6

2007

7.9